Tie-tamper.



H. CHRiSTIANSEN.

TIE TAMPER.

APPLICATION FILED 00T. 27, 1913.

ll Patented Off. 24, 1916.

workman to immediately of tamping', because he have the sure aim that ising by hand, in an improved quality olY tamping work, because on the onehand the strength ot the blows is considerably greater and moreuniitorn'i. the life of the rails beingilengthened hereby, and becauseon the other` hand it is, on aeeount ot the greater strength ot' theblows, only neeessary to carry out the work no longer needs to neeessaryin tamptainp on one side.

`inent which is similar to By being able to tamp through beneath the tiefrom the one side to the other. it is possible to ascertain whether thetie is really lying throughout its width upon a firni bed. If thesleepers or ties are taiiiped t'rom both sides, which is the onlypossible way when tamping by hand or with a power driven tan'iping toolthat moves in an oblique direetion, it is impossible to tell whether ornot, through the careless work of'I one or another of the workmen, thebeds ol some of the sleepers have been l'et't hollow in the middle.Since by the aid oi the new deviee yone man takes the place of a largenumber ot' workinen the working costs are very considerably lower thanwhen using hand labor. .tn extremely in'iportant point is that the workol taniping can also be carried out niueh faster. so that it is possibleto utilize the briet'est intervals between trains (on rity railways.large sliunting yards, ete.) lor the rei-onstruetion olf-'lines andrepairs, whirh results in an additional shortening olt the total timerequired tor earryiiig out the work.

As compared with the known tamping nia- (fliines the new'deviee. has thefollowing advantages: lVhen stopping work no unicasten'iiig;` ot' pai'tsis neeessary: the versatility is the same as when working by hand.(lontra ry to the machines used hitherto it is possible to t'ollow upthe material just as well as when taniping by hand. rl`he blows ran,.inst as in tainping by han'd, be direeted in an approximatelyhorizontal direction. It is therefore possible` to utilize the greaterstrength ot' theblows to the best advantage and to firmly tanip thewhole suriiare beneath the sleepers from their one side, whirh was notpossible with the known maehines sltriking obliquely from above. .tobelow.

rlhe improvement ('onsists in an instruan ordinary tamping piek andwhirh (-onsists of a long handle similar` to the handle otl a tainpingpiek and ot' annloii tainping tool eorresponding to the blunt head ot'angleto the lower end held against the ballast the taniping tool beingner olI a power driven hammer. i'. y. rompressed air hammer orelertropneumatie hammer. The tainping tool ol: the motor driven hammeris shaped at the lront like the front part ol an ordinary hand tainpingot' the handle. being that is to be tainped` arranged in the man-"serewed a tainping piek fixed at an.

piek, lWhen the device is in operation the workman holds this tampingtool against the ballast and lets the hammer operate whieh results inthe ballast being lirnily packed. The worknian feels whether and howniurh resistance the ballast oflers to the tainping tool and can followup the ballast." When a train passes the workmen simply step otl' theline just as they do when using ordinary tamping picks.

The invention is shown in the ing drawing in whieh,

Figure 1 is a side view oll a pneumatie tamping maehine lised torcarrying out the new method, partly in section. l `ig'. :2 is a planview ol the taniping tool, Fig. il is a sei-tional view ole aneleetropmannatir or meeliaiunnieuinatie tamping marhine. whieh is usedl'or carrying out the new method. Fig. 4- illustrates Athe manner inwhieh the tainping tool shown in Fig. il is employed.

'lhe pneumatie tainl'iing marhine shown in l `igs. 1 and 2 ronsists ol ahandle r/ and a compressed air hammer 'lhe latter is fixed at an angleto the lower end ol the handle. whirh arrangement; enables the ma ehineto be held in a eonvenient manner and on the other hand renders possiblea rompletely horizontal position ol the aetual tool. 'l`he handle a isl'orined in the shape oft a tube and .serves as a eondurtor lorrompi'essed air. lt may be eonnerted to 'an air rompi-essor (notshown)standing beside the rail trark by a flexible pipe (not shown). 'l`heeompressed air hammer (o) is ol' the usual kind. ln the lront eylindereap (/f) is inserted a rod r. 'lhis rod earries at its Jfront end thetainping tool the l'ront view ot' whieh is about the salue as the l'rontend of an ordinary tan'iping piek. lhe valve gear ot the eonipressed airhainnier is not shown. 'l`he front rylinder rap b' is not last to the(Zylinder, but is pressed against the trout end ol the rylinder by astrong spring (f. 'l`he flexible eonneilion of' the liront vlinder eapo* is neressarv in order that, when a blow doesl not .strike :in object7the rap maybe able to inove f'orward a certain distanre vwhen the air isrompressed in the spare between the eylindeil rap and the piston`whereby the living torre ofl the striking` piston is absorbed. ly thismeans violent knorks that would result l'roin blows that do not strikeany objert are taken b v a spring eushion and the tearing ollI orstrut-tion otI the l'ronl, rylinder :ieeonipa uyderap is prevented,

vWhen using the maelune the workman holding the' handle ol' same.presses the eompressed air hammer o with moderate pressure against theballast and lets the hammer operate. ()n the ballast being pressed in.the workman follows up with the hammer.

lVith the elerlronieuniatie lain )inw ilial l h chine shown in Figs, 5%and l the electric current may be taken vfrom existing supply mains orthrough wires L' trom a portable dynamo (not shown) placed near therails and connected to a small elcctromotor l.

'lhe rotation of the motor shaft Z is transmitted by a neiiible shaft mto a bevel driving vwheel n in the tamping machine i, the bevel wheelengaging another bevel wheel y) fixed to a .crank shaft o. The crankshaft 0 imparts a reciprocating motion to a cylinder q which contains-amovable piston 7^. Un the reciprocation ot' the cylinder q the piston isforced by the air at both its sides to participate in the reciprocatingmotion. The air in the two cylinder spaces acts as an elastic cushion.ln the Jfront cap of the cylinder g is slidably fixed a rod t, whichcarries the tamping tool s similarly as shown in the constructionrepresented ,in Fig. l. The rod t is however not rotatable and is heldin its rearward position by a spring u,

A long handle n is tiXed at an angle to the tamping machine By thishandle o the workman holds the tampingmachine t' and presses it withmoderate torce against the ballast, 'following the ballast up asy itrecedes on being pressed in.

instead of the electromotor Z the flexible shaft m may be driven by anyother kind ot power machine such as an oil engine, etc.

l claim:

l. A device for tamping sleepers comprising a chamber adapted to beconnected with a source et' power, a hammer in said chamber formed inthe shape of a piston, a tamping tool. adapted to be struck by thehammer, and a handle for freely holding the device ixed to the chambe'at an angle to the direction of movement of the hammer, said handlebeing of sntlicient length to altord ample leverage for readily guidingthe hammer.

2. A device for tamping sleepers comprising a chamber adapted to beconnected with a source of power, a hammer in said chamber vformed inthe shape ot' a piston, a tamping tool adapted to be struck by thehammc' and slidably but not rotatably held in said chamber, and a handletor freely holding the device iiXed to the chamber at an angle to thedirection of movement of the hammer, said handle being of suiicientlength to atl'ord ample leverage for readily guiding the hammer..

El. A device for ytamping sleepers compris4- ing a chamber adapted to beconnected with a source of power, a hammer in said chamber 'h )rmed inthe shape ot' a piston, a tamping tool formed in the shape of the bluntend ot' an ordinary hand hammer and adapted to be struck by said hammer,and a handle -for freely holding the device fixed to the chamber at anangle to the direction of movement ot the hammer, said handle beingofsufficient length to al'ord ample leverage for readily guiding thehammer.

l. device for tamping ties, comprisingr a cylinder, a piston within thecylinder, said piston having a chamber therein, a hammer within saidchamber, air spaces on two sides of the hammer, a crank shaft adapted toreciprocate the piston, means tor driving the crank shaft, a tampingtool carried bythe cylinder' and acted upon by the hammer, and a handlefor freely holding the device fixed to `the cylinder at an angle to theaxis of the latter to position the cylinder in a substantiallyhorizontal plane, said handle beingvof sufficient length to ali'ordample leverage for guiding the cylinder.

A device, for tamping ties, comprising a cylinder, ay piston within thecylinder, said piston having a. chamber therein, ahammer within saidchamber, air spaceson two sides of the hammer, a crank shaft adapted toreciprocatethe piston, a flexible shaft coupled to said crank shaft,means for driving said flexible shaft, and a handle t'or freely holdingthe device lixed to the cylinder at an angle to the axis of the latterto position the cylinder in a substantially horizontal plane, saidhandle being of sufiicient length to ai'ord ample leverage for guidingthe cylinder.

in witness whereof lY have hereunto set my hand in presence of twowitnesses.

HEINRlCIl CHRISTlNSEN,

lVitnesses Ennnsr ll. L. Mmimmnorn, lnA (lmus'r. 'lineman/WN.

